CN111203668A - Welding workstation of support assembly - Google Patents

Abstract

The invention discloses a welding workstation of a support assembly, which comprises a welding robot, a first station, a second station and a third station; the first station comprises a first clamp unit, the first clamp unit comprises a first positioning block, a first positioning assembly and an interval positioning device, the first positioning block is mounted on the first plate and used for positioning the base plate, and the first positioning assembly and the interval positioning device are used for positioning the first ear plate; the second station comprises a second clamp unit, the second clamp unit comprises a second positioning block arranged on the second plate, a first positioning assembly and a clamping device, and the second positioning block and the clamping device are used for positioning the first side plate; and the third station comprises a third clamp unit, the third clamp unit comprises a first positioning component and a second positioning component, the second positioning component is arranged on the third plate, and the second positioning component is used for positioning the second lug plate. The workpiece to be welded is clamped quickly and stably through the first clamp unit, the second clamp unit and the third clamp unit, and welding efficiency and welding quality are improved by matching with welding robots for welding.

Description

Welding workstation of support assembly

Technical Field

The invention relates to welding equipment, in particular to a welding workstation of a support assembly.

Background

A support assembly of a material lifting oil cylinder is shown in figure 1, a box body 1 ' welded with plates is arranged in the middle, and comprises a top plate 101 ', a first side plate 102 ', a second side plate 103 ', a third side plate 104 ', a bottom plate 105 ', a rib plate 106 ', two first lug plates 2 ' are arranged on the end surface of the top plate 101 ', two second lug plates 3 ' are arranged on the end surface of the first side plate 102 ', a first through hole 201 ' is formed in the first lug plate 2 ', a second through hole 301 ' is formed in the second lug plate 3 ', and the first through hole 201 ' and the second through hole 301 ' are both used for being connected with a rotating shaft, so that the support assembly is rotatably connected with other components; because the first ear plate 2 'and the second ear plate 3' are used for being connected with other parts and need to realize the rotation function, the position of welding the first ear plate 2 'and the second ear plate 3' to the box body requires higher precision in the welding process, the distance and the parallelism between the two ear plates 2 'are higher, and the distance and the parallelism between the two ear plates 2' are higher.

At present, manual welding is carried out on the support assembly, the support assembly is a common production mode, the lug plate I2 'and the lug plate II 3' are positioned through manual measurement or self-made simple fixture tools, welding is carried out on a handheld welding gun, and therefore the support assembly of the material lifting oil cylinder is finally manufactured.

The disadvantages of the production mode are that:

1. manual welding has high requirements on physical strength of workers, the physical strength of manual welding is difficult to guarantee, and the manual welding speed is slow, so that the welding efficiency is low;

2. the manual welding mode is difficult to ensure the welding precision of the first lug plate and the second lug plate, so that the quality levels of welded products are uneven;

3. manual welding is difficult to satisfy mass modern industrial production.

Disclosure of Invention

This application is through providing a weldment work station of support assembly to improve welding efficiency and precision to carrying material hydro-cylinder support assembly.

The embodiment of the application provides a welding workstation of a support assembly, which comprises a welding robot, wherein a first station, a second station and a third station are sequentially arranged around the welding robot at intervals, the first station is used for welding a first lug plate on a top plate, the second station is used for welding a first side plate, a second side plate, a third side plate and a bottom plate on the top plate, and the third station is used for welding the second lug plate on the first side plate; the first station comprises at least one first clamp unit, the first clamp unit comprises a first plate, a first positioning block, a first positioning assembly and an interval positioning device, and the first positioning block is mounted on the first plate and used for positioning the bottom plate; the first positioning assembly is arranged on the first plate and used for positioning the position of the first lug plate relative to the top plate, and the interval positioning device is used for positioning the relative positions of the two lug plates; the second station comprises at least one second clamp unit, the second clamp unit comprises a second plate, a second positioning block, a first positioning assembly and a clamping device, the second positioning block is mounted on the second plate and used for positioning the first side plate, the first positioning assembly is mounted on the second plate and used for positioning the first ear plate after welding of the first station, at least one clamping device is mounted on the second plate, and the clamping device is used for clamping the first side plate; the third station comprises at least one third clamp unit, the third clamp unit comprises a third plate, a second positioning assembly and a first positioning assembly, the first positioning assembly is installed on the third plate and used for positioning the first lug plate welded on the second station, and the second positioning assembly is used for positioning the second lug plate.

The positioning assembly I and the spacing positioning device are used for stably positioning the lug plate I, spot welding is carried out on the lug plate I and the top plate manually, and then welding is carried out through a welding robot, so that welding of a station I is completed; positioning the welded ear plate I of the station I through a positioning assembly, stably positioning the side plate I through a clamping device, spot-welding the side plate I and a top plate manually, spot-welding the side plate II, the side plate III, a bottom plate and a rib plate, and finally welding through a welding robot to finish welding of the station II; the two welded otic placodes of a pair of station of locating component are fixed a position, and two otic placodes of rethread locating component are fixed a position to two, then artifical spot welding welds otic placode two in curb plate one, and welding robot welds at last.

The workpiece to be welded is clamped quickly and stably through the first clamp unit, the second clamp unit and the third clamp unit, and finally, a finished product is welded through the welding robot, so that the welding efficiency and the welding quality are improved.

On the basis of the technical scheme, the invention can be further improved as follows:

further: the first positioning block is provided with two positioning blocks which are perpendicular to each other. The beneficial effect of this step: and the top plate is quickly positioned through the first positioning block.

Further: the first positioning assembly comprises a first positioning shaft, a first driving mechanism, a second positioning shaft and a second driving mechanism, the first positioning shaft is in sliding connection with a first seat of the first plate, the first positioning shaft is provided with a first positioning surface and a second positioning surface, the first positioning surface is used for positioning between the first seat, the first driving mechanism and the second driving mechanism are installed on the first plate, the first driving mechanism is used for driving the first positioning shaft to enter one of the first through holes, the second positioning surface is used for positioning between the first ear plates, the second driving mechanism is used for driving the second positioning shaft to enter the other first through hole, the second positioning shaft is provided with a third positioning surface, and the third positioning surface is used for positioning with the other first ear plate. The beneficial effect of this step: through the positioning shaft I and the positioning shaft II, the first ear plate is inserted into the first ear plate, and the positioning surface II and the positioning surface III are attached to the end surface of the first ear plate, so that the first ear plate can be positioned quickly and accurately.

Further: the spacing positioning device comprises a first block, a second block, a first fixed finger, a second fixed finger, a first movable finger, a second movable finger and a third driving mechanism, wherein the second block is connected with the first block in a sliding manner, the third driving mechanism is used for driving the second block to move, the first fixed finger and the second fixed finger are arranged on the first block at intervals, and the first movable finger and the second movable finger are arranged on the second block at intervals. The beneficial effect of this step: the distance between the two ear plates I can be kept fixed quickly by clamping the movable finger I and the fixed finger I and clamping the movable finger II and the fixed finger II.

Further: and the positioning groove is used for placing the side plate and positioning the edge of the side plate I. The beneficial effect of this step: and the first side plate is quickly positioned through the positioning groove.

Further: the clamping device comprises a clamp which is used for pressing the surface of the first side plate. The beneficial effect of this step: and quickly positioning the first side plate through the clamp.

Further: the positioning assembly II comprises a supporting plate, a positioning sleeve, a first bolt and a second bolt, the supporting plate is installed on the plate III, the positioning sleeve is fixed on the supporting plate, the first bolt is used for being inserted into the positioning hole II and connected with the positioning sleeve, and the second bolt is used for being inserted into the other positioning hole II and connected with the positioning sleeve. The beneficial effect of this step: the two ear plates II are accurately positioned at the two sides of the positioning sleeve through the first bolt and the second bolt.

Compared with the prior art, the invention has the beneficial effects that:

1. the first clamp unit can quickly and accurately position the first lug plate and the top plate;

2. the side plate I can be quickly positioned by clamping of the clamping device and matching with the positioning groove, and then the positioning assembly is used for quickly positioning the lug plate I welded at the station I, so that the accuracy and stability of positioning between the side plate I and a workpiece welded at the station I in the second clamp unit are ensured;

3. the lug plate II can be quickly positioned through the matching of the positioning sleeve and the plug pin I and the plug pin II, and the lug plate I is accurately and quickly positioned through the matching of the positioning assembly, so that the accuracy and the stability of positioning between the side plate I and the lug plate II in the third clamp unit are ensured;

4. the welding speed and the welding effect can be improved through the welding robot.

5. The clamp unit in each station can realize rapid and stable clamping of the workpiece to be welded, and the clamp unit is matched with a welding robot, so that rapid, efficient and stable welding can be realized.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic three-dimensional structure diagram of a support assembly of a material lifting cylinder;

FIG. 2 is a schematic of a two-dimensional structure of the present invention;

FIG. 3 is a schematic three-dimensional structure of the present invention;

FIG. 4 is a schematic two-dimensional structure of the first clamping unit;

FIG. 5 is a top view of FIG. 4;

FIG. 6 is a cross-sectional view taken along A-A of FIG. 5;

FIG. 7 is a schematic three-dimensional structure of a workpiece held by a first clamping unit;

FIG. 8 is a schematic three-dimensional structure of a second chuck unit;

FIG. 9 is a schematic three-dimensional structure of a workpiece held by the second gripper unit;

FIG. 10 is a schematic three-dimensional structure of a third chuck unit;

FIG. 11 is a schematic two-dimensional structure of a third chuck unit;

FIG. 12 is a cross-sectional view taken along line B-B of FIG. 11;

fig. 13 is a three-dimensional structure diagram of the third gripper unit gripping a workpiece.

Wherein, 1 ' box body, 101 ' top plate, 102 ' side plate I, 103 ' side plate II, 104 ' side plate III, 105 ' bottom plate and 106 ' rib plate;

2 'ear plate I, 201' through hole I;

a second 3 'ear plate and a second 301' through hole;

1, a welding robot;

2, a workbench;

3, a first station I, a 301 first clamp unit, a 302 plate I, a 303 positioning block I, a 304 positioning component I, a 305 spacing positioning device, a 306 seat I, a 307 seat II, a 308 seat III, a 309 seat IV, a 310 positioning shaft I, a 311 driving mechanism I, a 312 positioning shaft II, a 313 driving mechanism II, a 314 sliding hole I, a 315 shaft I, a 316 shaft II, a 317 shaft III, a 318 positioning surface I, a 319 positioning surface II, a 320 sliding hole II, a 321 shaft IV, a 322 shaft V, a 323 positioning surface III, a 324 block I, a 325 block 327 II, a 326 fixed finger I, a fixed finger II, a 328 movable finger I, a 329 movable finger II, a 330 driving mechanism III, a 331 sliding groove, a 332 through hole III and a 333 pushing plate;

4, a second station, a 401 second clamp unit, a 402 second plate, a 403 positioning block II, a 404 clamping device, a 405 positioning groove, a 406 seat V, a 407 sliding hole III, a 408 sliding hole IV and a 409 supporting column;

a third station 5, a third clamp unit 501, a third plate 502, a second 503 positioning component, a support plate 504, a positioning sleeve 505, a first 506 plug pin, a second 507 plug pin, a threaded end 508, a 509 plug-in part, a 510 rotating end and a 511 plane;

6 a control cabinet.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

As shown in fig. 2 and 3, the welding workstation of the support assembly comprises a welding robot 1, a first station 3, a second station 4 and a third station 5 are sequentially arranged on the workbench 2 at intervals around the welding robot 1, the workbench 2 is formed by welding aluminum profiles, the first station 3, the second station 4 and the third station 5 are sequentially arranged on the workbench 2, the first station 3 is used for welding the first lug plate 2 'on the top plate 101', the second station 4 is used for welding the first side plate 102 ', the second side plate 103', the third side plate 104 ', the bottom plate 105' and the rib plate 106 'on the top plate 101', and the third station 5 is used for welding the second lug plate 3 'on the first side plate 102'.

As shown in fig. 2, the first station 3 comprises at least one first clamping unit 301, and the first clamping unit 301 is used for positioning the first lug plate 2 ', the second lug plate 3 ' and the top plate 101 ' so as to facilitate welding by the welding robot 1; in this embodiment, the number of the first clamp units 301 is two, and the purpose of the two first clamp units 301 is to enable the welding robot 1 to weld the workpiece in the other first clamp unit 301 in the process of taking down the welded workpiece and moving the welded workpiece into the second station 4 after the welding robot 1 welds the workpiece in one of the first clamp units 301, so that the welding robot 1 can weld the workpiece uninterruptedly.

Specifically, as shown in fig. 4 and 5, the first fixture unit 301 includes a first plate 302, a first positioning block 303, a first positioning assembly 304, and a spacing positioning device 305, the first plate 302 is mounted on the worktable 2, two of the first positioning blocks 303 are vertically disposed, the first positioning blocks 303 are mounted on the upper end surface of the first plate 302, and the surface of the first positioning blocks 303 is attached to the corresponding outer surface of the top plate 101 ', so as to achieve rapid positioning of the top plate 101'.

Specifically, as shown in fig. 4 and 6, a first positioning component 304 is mounted on the first plate 302, and the first positioning component 304 is used for positioning the position of the first ear plate 2 'relative to the top plate 101'; the first clamp unit 301 further comprises a first seat 306, a second seat 307, a third seat 308 and a fourth seat 309 which are sequentially arranged on the first plate 302 at intervals, the second seat 307 and the third seat 308 are respectively arranged on two sides of the first positioning block 303, the first positioning assembly 304 comprises a first positioning shaft 310, a first driving mechanism 311, a second positioning shaft 312 and a second driving mechanism 313, the first driving mechanism 311 is arranged at the upper end of the first seat 306, the second seat 307 is provided with a first sliding hole 314 corresponding to the first positioning shaft 310, the first sliding hole 314 is a through hole, and the first positioning shaft 310 is slidably inserted into the first sliding hole 314; the first positioning shaft 310 is a stepped shaft and sequentially comprises a first shaft body 315, a second shaft body 316 and a third shaft body 317 which are coaxial, the outer diameters of the first shaft body 315, the second shaft body 316 and the third shaft body 317 are sequentially reduced, a first positioning surface 318 is arranged between the first shaft body 315 and the second shaft body 316, a second positioning surface 319 is arranged between the second shaft body 316 and the third shaft body 317, the second shaft body 316 is inserted into the first sliding hole 314 in a sliding mode, the first positioning surface 318 is attached to the end surface of the second seat 307 so that the first positioning shaft 310 is positioned in the second seat 307, the second positioning surface 319 is attached to the end surface of the corresponding first ear plate 2 'so that the first ear plate 2' is positioned, and the first driving mechanism 311 is used for driving the first positioning shaft 310 to slide along the first sliding hole 314 and driving the third shaft body 317 to enter the; the second driving mechanism 313 is installed at the upper end of the fourth seat 309, the third seat 308 is provided with a second sliding hole 320 corresponding to the second positioning shaft 312, the second sliding hole 320 is a through hole, and the second positioning shaft 312 is inserted into the first sliding hole 314 in a sliding manner; the second positioning shaft 312 is a stepped shaft and sequentially comprises a fourth shaft body 321 and a fifth shaft body 322 which are coaxial, the outer diameters of the fourth shaft body 321 and the fifth shaft body 322 are sequentially reduced, a third positioning surface 323 is arranged between the fourth shaft body 321 and the fifth shaft body 322, the fourth shaft body 321 is slidably inserted into the second sliding hole 320, the fourth positioning surface is attached to the end surface of the corresponding first lug plate 2 ', the first lug plate 2 ' is positioned, and the second driving mechanism 313 is used for driving the second positioning shaft 312 to slide along the second sliding hole 320 and driving the fifth shaft body 322 to enter the corresponding first through hole 201 '. The first driving mechanism 311 and the second driving mechanism 313 adopt push-pull type clamps of Jiagang CH-36003M, and can also adopt push-pull type clamps such as CH-36003M-A pneumatic pressing clamps and the like.

Specifically, as shown in fig. 6 and 7, the spacing positioning device 305 includes a first block 324, a second block 325, a first fixed finger 326, a second fixed finger 327, a first movable finger 328, a second movable finger 329, and a third driving mechanism 330, wherein the upper end surface of the first block 324 is provided with a sliding groove 331 matching with the second block 325, the sliding groove 331 is a through groove, the second block 325 is slidably disposed in the sliding groove 331, the first fixed finger 326 and the second fixed finger 327 are fixed at the lower end surface of the first block 324 at intervals, the spacing between the first fixed finger 326 and the second fixed finger 327 is the spacing between the two end surfaces of the two ear plates one 2 'on the same side corresponding to each other, the lower end of the first block 324 is further provided with a third through hole 332 communicating with the sliding groove 331, the first movable finger 328 and the second movable finger 329 are installed at the lower end surface of the second block 325 at intervals through the third through hole 332, and the distance between the first movable finger 328 and the second movable finger 329 is the spacing between the two end surfaces of the two ear plates one 2' on the same side The distance between the fixed finger II 327 and the movable finger II 329 is the plate thickness of the lug plate I2' which needs to be correspondingly clamped by the people, and the driving mechanism III 330 is arranged on the upper end surface of the block I324 and is used for driving the block II 325 to move; the driving mechanism III 330 adopts a CH-36003M push-pull clamp, the upper end of the block II 325 is also provided with a push plate 333 corresponding to the CH-36003M push-pull clamp, the push plate 333 is pushed by the CH-36003M push-pull clamp, so that the movable finger I328 and the movable finger II 329 move, the function of clamping or loosening the otic placode I2 'is realized, and the quick positioning of the distance between the two otic placodes I2' can be quickly realized through the distance positioning device 305.

The working process of the first station 3 is as follows:

1. firstly, placing the top plate 101 'on the upper end face of the first plate 302, and quickly positioning two adjacent edges of the top plate 101' through the first two positioning blocks 303;

2. placing the first ear plate 2 ' on the top plate 101 ', positioning the first through holes 201 ' of the two ear plates through the first positioning shaft 310 and the second positioning shaft 312, clamping one of the ear plates through the first fixed finger 326 and the first movable finger 328, clamping the other ear plate through the second fixed finger 327 and the second movable finger 329, so that the first ear plate 2 ' is completely positioned on the top plate 101 ',

3. the ear plate 2 'and the top plate 101' are pre-positioned by manual welding, and then the ear plate 2 'and the top plate 101' are completely welded by the welding robot 1.

As shown in fig. 2 and 9, the second station 4 comprises at least one second clamping unit 401, and the second clamping unit 401 is used for clamping the first ear plate 2 'and the first side plate 102' so as to facilitate welding by the welding robot 1; in this embodiment, there are two second jig units 401, and the reason for providing two second jig units 401 is the same as the reason for providing two first jig units 301 in station one 3.

Specifically, as shown in fig. 8, the second clamp unit 401 includes a second plate 402, a second positioning block 403, a first positioning assembly 304, and a clamping device 404, the second plate 402 is mounted on the corresponding workbench 2, the second positioning block 403 is mounted on the second plate 402 and used for positioning the first side plate 102 ', a positioning groove 405 is formed in the upper end surface of the second positioning block 403, and the positioning groove 405 is used for placing the first side plate 102 ' and used for positioning the edge of the first side plate 102 '; the second fixture unit 401 further includes a seat five 406, the first driving mechanism 311 and the second driving mechanism 313 are installed on two sides of the seat five 406, the seat five 406 is provided with a third sliding hole 407 corresponding to the second shaft 316 and a fourth sliding hole 408 corresponding to the fourth shaft 321, that is, the first positioning assembly 304 is installed on the seat five 406 and positions the first ear plate 2' welded at the first station 3 through the first positioning assembly 304.

Specifically, as shown in fig. 8, at least one clamping device 404 is installed on the second plate 402, and the clamping device 404 is used for clamping the first side plate 102'; in this embodiment, the clamping device 404 includes two clamping devices 404, each clamping device 404 is a rigid CH-25383 quick clamp, one clamping device 404 is mounted on the second positioning block 403 and used for pressing and positioning the top plate 101 ', a supporting column 409 is further mounted on the upper end surface of the second plate 402, the upper end surface of the supporting column 409 and the bottom of the positioning groove 405 are located on the same horizontal plane 511, the top plate 101 ' is placed on the upper end of the supporting column 409, and the other clamping device 404 is mounted on the supporting column 409 and used for pressing and positioning the top plate 101 '.

The working process of the second station 4 is as follows:

1. placing the top plate 101 'in the positioning groove 405 and the supporting column 409, and positioning the lug plate I2' welded in the station I3 through the positioning assembly I304;

2. the first side plate 102 'and the top plate 101' are mutually contacted and positioned, and then manual spot welding is carried out on the first side plate 102 'and the top plate 101' manually, and pre-positioning is carried out;

2. spot welding the second side plate 103 ', the third side plate 104', the bottom plate 105 'and the rib plate 106' on the first side plate 102 'and the top plate 101';

3. the welding robot 1 completely welds the first side plate 102 ', the second side plate 103', the third side plate 104 ', the bottom plate 105', the rib plate 106 ', and the top plate 101'.

In the step 2 in the working process of the second station 4, the first lug plate 2 'is arranged on the top plate 101', the second lug plate 3 'is arranged on the first side plate 102', so that the requirement on the accuracy of the welding positions of the second side plate 103 ', the third side plate 104', the bottom plate 105 'and the rib plate 106' is low, the second side plate 103 ', the third side plate 104', the bottom plate 105 'and the rib plate 106' do not need to be accurately clamped, and only the spot welding positioning is manually carried out according to the positions of the top plate 101 'and the first side plate 102'.

As shown in fig. 2 and 13, the third station 5 includes at least one third clamping unit 501, and the third clamping unit 501 is used for clamping the first ear plate 2 'and the second ear plate 3' so as to facilitate welding by the welding robot 1; in this embodiment, there are two third jig units 501, and the reason for providing two third jig units 501 is the same as the reason for providing two first jig units 301 in station one 3.

Specifically, as shown in fig. 10, 11 and 12, the third fixture unit 501 includes a third plate 502, a first positioning assembly 304 and a second positioning assembly 503, the third plate 502 is mounted on the corresponding workbench 2, the first positioning assembly 304 is mounted on the third plate 502 and used for positioning the first ear plate 2 'welded at the second station 4, and the second positioning assembly 503 is used for positioning the second ear plate 3'; the third clamp unit 501 comprises a first seat 306, a second seat 307, a third seat 308 and a fourth seat 309, wherein the first seat 306, the second seat 307, the third seat 308 and the fourth seat 309 are sequentially fixed on the third plate 502 at intervals, a first driving mechanism 311 in a first positioning assembly 304 is installed on the first seat 306, a first positioning shaft 310 is slidably inserted into the second seat 307, a second positioning shaft 312 is slidably inserted into the third seat 308, and the fourth driving mechanism is installed on the fourth seat 309, and a first lug plate 2' welded at a second station 4 is positioned through the first positioning assembly 304; the second positioning component 503 comprises a support plate 504, a positioning sleeve 505, a first plug 506 and a second plug 507, the support plate 504 is mounted on the third plate 502, the positioning sleeve 505 is fixed on the upper end of the support plate 504, the positioning sleeve 505 is provided with a threaded hole along the axial line, one end of the first plug 506 is a threaded end 508, the threaded end 508 is in threaded connection with the threaded hole of the positioning sleeve 505, the middle part of the first plug pin 506 is provided with an insertion part 509 matched with the second through hole 301 ', the insertion part 509 is inserted into the second through hole 301', the other end of the first bolt 506 is a rotating end 510, the rotating end 510 is cylindrical, two planes 511 which are symmetrically parallel to each other are milled on the outer surface of the rotating end 510, the flat surface 511 is convenient for a tool, such as a wrench, to hold, so that the first bolt 506 is rotated by the tool, so that the first pin 506 positions a second lug plate 3' at one end of the positioning sleeve 505, the second pin 507 is identical to the first pin 506 in structure, so that the other ear plate two 3' is positioned at the other end of the fixing sleeve through the bolt two 507.

The working process of the third station 5 is as follows:

1. positioning the lug plate I2' welded at the second station II 4 through a positioning component I304;

2. positioning the second ear plate 3' at two sides of the positioning sleeve 505 through the first pin 506 and the second pin 507;

3. attaching the first side plate 102 'to the second ear plate 3', and presetting the second ear plate 3 'on the first side plate 102' through manual spot welding;

4. the second ear plate 3 'is completely welded to the first side plate 102' by the welding robot 1.

Welding robot 1 chooses for use loose TM2000 robot, and loose TM2000 robot is supporting to have switch board 6, and switch board 6 is used for controlling welding robot 1 and welds.

The welding workstation of this kind of support assembly has following advantage:

1. the first clamp unit 301 can quickly and accurately position the first ear plates 2 'and the top plate 101' by quickly positioning the first positioning block 303 and the periphery of the top plate 101 ', quickly positioning the positions of the first two ear plates 2' relative to the top plate 101 'by the first positioning assembly 304, and ensuring that the distance between the first two ear plates 2' is kept fixed by the distance positioning device 305;

2. the first side plate 102 ' can be quickly positioned by clamping the clamping device 404 and matching with the positioning groove 405, and then the first positioning assembly 304 is used for quickly positioning the first ear plate 2 ' welded at the first station 3, so that the accuracy and stability of positioning between the first side plate 102 ' and a workpiece welded at the first station 3 in the second clamp unit 401 are ensured;

3. the second ear plate 3 'can be quickly positioned through the matching of the positioning sleeve 505, the first bolt 506 and the second bolt 507, and the first ear plate 2' is accurately and quickly positioned through the matching of the first positioning component 304, so that the accuracy and the stability of positioning between the first side plate 102 'and the second ear plate 3' in the third clamp unit 501 are ensured;

4. the welding rate and the welding effect can be improved by the welding robot 1.

5. The clamp unit in each station can realize rapid and stable clamping of the workpiece to be welded, and the clamp unit is matched with the welding robot 1 to realize rapid, efficient and stable welding.

The above-mentioned connected mode, the connected mode of setting, installation can select suitable connected mode among the prior art that has existed, like welding, riveting, threaded connection, bonding, pin joint, key-type connection, elastic deformation connect, buckle connection, interference connection, injection moulding's mode realization structural linking to each other, in the actual production, should realize connecting the purpose, guarantee under the prerequisite of connection effect, according to production condition, select the connected mode that the cost is lower, production efficiency is high.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (7)

1. A welding workstation of a support assembly is characterized by comprising a welding robot, wherein a first station, a second station and a third station are sequentially arranged around the welding robot at intervals, the first station is used for welding a first lug plate on a top plate, the second station is used for welding a first side plate, a second side plate, a third side plate and a bottom plate on the top plate, and the third station is used for welding the second lug plate on the first side plate;

the first station comprises at least one first clamp unit, the first clamp unit comprises a first plate, a first positioning block, a first positioning assembly and an interval positioning device, and the first positioning block is mounted on the first plate and used for positioning the bottom plate; the first positioning assembly is arranged on the first plate and used for positioning the position of the first lug plate relative to the top plate, and the interval positioning device is used for positioning the relative positions of the two lug plates;

the second station comprises at least one second clamp unit, the second clamp unit comprises a second plate, a second positioning block, a first positioning assembly and a clamping device, the second positioning block is mounted on the second plate and used for positioning the first side plate, the first positioning assembly is mounted on the second plate and used for positioning the first ear plate after welding of the first station, at least one clamping device is mounted on the second plate, and the clamping device is used for clamping the first side plate;

the third station comprises at least one third clamp unit, the third clamp unit comprises a third plate, a second positioning assembly and a first positioning assembly, the first positioning assembly is installed on the third plate and used for positioning the first lug plate welded on the second station, and the second positioning assembly is used for positioning the second lug plate.

2. The workstation of claim 1 wherein two of said alignment blocks are disposed perpendicular to each other.

3. The workstation according to claim 1, wherein the first positioning assembly comprises a first positioning shaft, a first driving mechanism, a second positioning shaft and a second driving mechanism, the first positioning shaft is slidably connected with a first seat arranged on the first plate, the first positioning shaft is provided with a first positioning surface and a second positioning surface, the first positioning surface is used for positioning between the first seat and the second seat, the first driving mechanism and the second driving mechanism are mounted on the first plate, the first driving mechanism is used for driving the first positioning shaft to enter one of the first through holes, the second positioning surface is used for positioning between the first ear plates, the second driving mechanism is used for driving the second positioning shaft to enter the other of the first through holes, the second positioning shaft is provided with a third positioning surface, and the third positioning surface is used for positioning between the first ear plates.

4. The workstation according to claim 1, wherein the spacing positioning device comprises a first block, a second block, a first fixed finger, a second fixed finger, a first movable finger, a second movable finger and a third driving mechanism, wherein the second block is slidably connected with the first block, the third driving mechanism is used for driving the second block to move, the first fixed finger and the second fixed finger are mounted on the first block at intervals, and the first movable finger and the second movable finger are mounted on the second block at intervals.

5. The workstation according to claim 1, wherein the second positioning block is provided with a positioning groove, and the positioning groove is used for placing the side plate and positioning the edge of the first side plate.

6. The workstation of claim 1 wherein said clamping means comprises a clamp for pressing against a surface of said first side plate.

7. The workstation according to claim 1, wherein the second positioning assembly comprises a support plate, a positioning sleeve, a first plug pin and a second plug pin, the support plate is mounted on a third plate, the positioning sleeve is fixed on the support plate, the first plug pin is used for being inserted into the second positioning hole and connected with the positioning sleeve, and the second plug pin is used for being inserted into the other second positioning hole and connected with the positioning sleeve.

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